Over the years, Baker marked the gun grade for a while, then discontinued, then started up again. I have 524 B and 527A that are marked. Of the approx. 250 A and B grades I recorded years ago, I would say in general there were more B grades than A Grades in the early guns, and maybe more A Grades when numbers got into 4 digits. I did mark in my lists which were A's and which were B's, but did not note if the A or B stamp was on each gun listed. Paragons, for a while were marked P for Paragon , but early on and in the middle, the grade mark was omitted.